🇺🇸 United States ZIP Code

STANDARD

92040

Lakeside

ZIP Code 92040 is a standard zip code serving Lakeside, Lakeside, California (CA), in San Diego County, United States. It has an estimated population of 41,281 with a median household income of $64,044. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: California (CA)
County: San Diego
City: Lakeside
Timezone: America/Los_Angeles

Coordinates

Latitude: 32.856200
Longitude: -116.920100

Geographic Details

Land Area: 64.18 mi²
Water Area: 2.54 mi²
Population Density: 643.0 people per mi² (75th percentile)
Bounding Box: 32.969231°N, 32.824157°S, -116.787309°E, -116.972699°W

With 41,281 residents spread across 64.18 square miles, this area has a population density of 643.0 people per square mile.

Demographics

41,281

Population

95th percentile

$64,044

Median Income

75th percentile

$340,900

Median Home Value

90th percentile

64.18 mi²

Land Area

The median household income in 92040 is $64,044, and the median home value is $340,900. This places the area in the top 25% nationally for household income.

Housing

15,610

Total Units

14,789

Occupied Units

94.7%

Occupancy Rate

Similar ZIP Codes in California

ZIP codes with similar median household income in California.

90604

Whittier

$65,570

95982

Sutter

$63,277

94579

San Leandro

$72,369

91345

Mission Hills

$60,352

91723

Covina

$61,348

90404

Santa Monica

$59,695

92059

Pala

$55,938

92832

Fullerton

$59,754

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.